The systems used to allow blind and visually impaird people to read. It uses raised dots for words and numbers and is found in an increasing number of public places.

BRAILLE: "Braille is the international of reading for vision impaired people developed by Louis Braille in 1829."
Cite this page: N., Pam M.S., "BRAILLE," in, April 7, 2013, (accessed May 16, 2021).